Fifth Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 2
Third Grade Science Volume 2, Textbook Edition
Third Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 1
Fourth Grade Science Volume 2, Textbook Edition
Fourth Grade Science Volume 1, Textbook Edition
Hunan Education Edition Fourth Grade Science Volume 1
Qingdao Edition Fourth Grade Science Volume 2
E-education edition fifth grade science volume 2
E-education edition fifth grade science volume 1
Qingdao Edition Fifth Grade Science Volume 2
Fifth Grade Science Volume 2, Textbook Edition
Zhejiang Education Edition Seventh Grade Science Volume 2
Hunan Education Edition Fifth Grade Science Volume 2
E-education edition third grade science volume 1
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Category | Format | Size |
---|---|---|
E-education edition fifth grade science volume 1 | pptx | 6 MB |
Description
"Frog" Pond Community PPT Courseware 2
Observe the appearance and characteristics of frogs
Forelimbs: short, four-fingered, supporting head and trunk
Hind limbs: five toes, webbed between toes, suitable for jumping and swimming
Do not harm the frog during the observation, and return the frog to nature after the observation.
Experiment: Study the role of frog's webbed feet when moving in water
experiment procedure
1. Open your fingers, put your hand into the sink filled with water, swing it back and forth, and experience the feeling.
2. Put a plastic bag on your hand, tie it with a rubber band at the wrist, spread your fingers as far as possible, put it into the sink and swing it back and forth to experience the feeling.
Experiments show that when we put on a plastic bag on our hands and open our fingers to paddle in the water, it is like opening the webbed feet of a frog, which increases the contact area with the water and increases the resistance, which is more conducive to swimming in the water. Produce reverse thrust. Frogs use the webs on their webbed feet to generate reverse thrust during paddling in the water, allowing them to swim quickly in the water.
Let’s talk about it: What stages does a frog go through in its life? What is the living environment like at each stage?
Egg, tadpole, young frog, adult frog
What we found
1. Characteristics of the frog body: it can be divided into three parts: head, trunk, and limbs. The forelimbs are short and short with no webbing between the toes; the hind limbs are thick and the toes are webbed;…
2. There are several stages in a frog's life: egg, tadpole, young frog, and adult frog.
When frogs are young, they live in water and breathe with their gills; when they grow up, they live on land and breathe with their lungs.
How are animals like frogs and toads different from birds, fish, and mammals?
Animals like frogs and toads are amphibians
What other animals do we know are amphibians? Tell me your reasons.
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"Frog Watching the Sea" PPT teaching courseware:
"Frog Watching the Sea" PPT teaching courseware Part 1: Learning objectives 1. Read the text thoroughly and recite the text. (Key points) 2. Understand the text content. Understand that when we encounter difficulties, as long as we take one step at a time, do not be afraid of difficulties and persevere to the end, we will definitely succeed. (difficulty..
"Frog Watching the Sea" PPT download:
"Frog Watching the Sea" PPT Download Part One: Learning Objectives 1. Learn the 10 new words in this lesson, pronounce them correctly, remember the glyphs, and have a preliminary understanding of their meanings in the text. 2. Read the text correctly, fluently and emotionally, and have a preliminary understanding of the text content. (emphasis) ..
"Frog Watching the Sea" PPT:
"Frog Watching the Sea" PPT Part One Content: Learning Objectives 1. Learn the 7 new words in this lesson, recognize a radical; understand words composed of new words. 2. Be able to read texts by role correctly, fluently and emotionally. 3. Know that as long as you are down-to-earth and work unremittingly...
File Info
Update Time: 2024-08-10
This template belongs to science courseware E-education edition fifth grade science volume 1 industry PPT template
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